Farming has also been a relatively good industry for development this year. Fishery farming is inseparable from the fish feed. So what does the production process of fish feed include?
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The nutrition of fish feed includes two parts, vegetable protein, and animal protein. Plant protein is produced using corn, rice, millet, beans, peanut cakes, etc. The main source of animal protein is fish meal, shrimp meal, crab meal, and other seafood. It can be added according to the desired nutrients.
It is recommended that the starch content of sinking fish feed is 10%-15%, and the starch content of floating fish feed should not be less than 20%. The source of starch is all kinds of grains. In addition, it is necessary to add nutrients such as fish meal, vitamins, and salt trace elements.
After the raw materials are prepared, they can be produced. To produce fish feed, various raw materials must be ground and then mixed. The smaller the ingredients, the later they should be added, such as the final mixing of various vitamins and trace elements. This is conducive to uniform mixing. In the fish food forming stage, it is divided into a sinking feed machine and a floating fish feed machine.
After the production is completed, it must be dried, which is to prevent the feed from becoming moldy. The drying process is achieved by drying. The fish food can be stored safely for a longer period of time through the drying of the fish food and the well-sealed packaging. After drying, you need to use a seasoning machine for seasoning. The seasoning is to be more in line with the taste of the fish and to be more tempting. After the fish is cooled, it can be packaged.
Fish feed lives in water, so the feed must have good stability, otherwise, the nutrients in the feed will be lost and water resources will also be polluted. The digestive tract of fish is relatively acid, and the activity of digestive enzymes in the body is relatively low. Therefore, the degree of grain crushing during fish food processing is more important. Different types of fish have different sizes. In order to make it easier for the fish to eat, the size of the fish food particles needs to be selected according to the body of the fish.